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Title: 300% Enhancement of Carrier Mobility in Uniaxial-Oriented Perovskite Films Formed by Topotactic-Oriented Attachment

Abstract

Organic-inorganic perovskites with intriguing optical and electrical properties have attracted significant research interests due to their excellent performance in optoelectronic devices. Recent efforts on preparing uniform and large-grain polycrystalline perovskite films have led to enhanced carrier lifetime up to several microseconds. However, the mobility and trap densities of polycrystalline perovskite films are still significantly behind their single-crystal counterparts. Here, a facile topotactic-oriented attachment (TOA) process to grow highly oriented perovskite films, featuring strong uniaxial-crystallographic texture, micrometer-grain morphology, high crystallinity, low trap density (≈4 x 1014 cm-3), and unprecedented 9 GHz charge-carrier mobility (71 cm2 V-1 s-1), is demonstrated. TOA-perovskite-based n-i-p planar solar cells show minimal discrepancies between stabilized efficiency (19.0%) and reverse-scan efficiency (19.7%). In conclusion, the TOA process is also applicable for growing other state-of-the-art perovskite alloys, including triple-cation and mixed-halide perovskites.

Authors:
 [1];  [1];  [1];  [1];  [2];  [3];  [3];  [1];  [4];  [1]
  1. National Renewable Energy Lab. (NREL), Golden, CO (United States)
  2. Argonne National Lab. (ANL), Lemont, IL (United States)
  3. Seoul National Univ., Seoul (Korea)
  4. National Renewable Energy Lab. (NREL), Golden, CO (United States); Univ. of Colorado, Boulder, CO (United States)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1364160
Alternate Identifier(s):
OSTI ID: 1400838
Report Number(s):
NREL/JA-5900-68431
Journal ID: ISSN 0935-9648
Grant/Contract Number:  
AC36-08GO28308; 0000990
Resource Type:
Accepted Manuscript
Journal Name:
Advanced Materials
Additional Journal Information:
Journal Volume: 29; Journal Issue: 23; Journal ID: ISSN 0935-9648
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE; carrier mobility; orientation; perovskite films; solar cells; topotactic-oriented attachment

Citation Formats

Kim, Dong Hoe, Park, Jaehong, Li, Zhen, Yang, Mengjin, Park, Ji -Sang, Park, Ik Jae, Kim, Jin Young, Berry, Joseph J., Rumbles, Garry, and Zhu, Kai. 300% Enhancement of Carrier Mobility in Uniaxial-Oriented Perovskite Films Formed by Topotactic-Oriented Attachment. United States: N. p., 2017. Web. doi:10.1002/adma.201606831.
Kim, Dong Hoe, Park, Jaehong, Li, Zhen, Yang, Mengjin, Park, Ji -Sang, Park, Ik Jae, Kim, Jin Young, Berry, Joseph J., Rumbles, Garry, & Zhu, Kai. 300% Enhancement of Carrier Mobility in Uniaxial-Oriented Perovskite Films Formed by Topotactic-Oriented Attachment. United States. doi:10.1002/adma.201606831.
Kim, Dong Hoe, Park, Jaehong, Li, Zhen, Yang, Mengjin, Park, Ji -Sang, Park, Ik Jae, Kim, Jin Young, Berry, Joseph J., Rumbles, Garry, and Zhu, Kai. Tue . "300% Enhancement of Carrier Mobility in Uniaxial-Oriented Perovskite Films Formed by Topotactic-Oriented Attachment". United States. doi:10.1002/adma.201606831. https://www.osti.gov/servlets/purl/1364160.
@article{osti_1364160,
title = {300% Enhancement of Carrier Mobility in Uniaxial-Oriented Perovskite Films Formed by Topotactic-Oriented Attachment},
author = {Kim, Dong Hoe and Park, Jaehong and Li, Zhen and Yang, Mengjin and Park, Ji -Sang and Park, Ik Jae and Kim, Jin Young and Berry, Joseph J. and Rumbles, Garry and Zhu, Kai},
abstractNote = {Organic-inorganic perovskites with intriguing optical and electrical properties have attracted significant research interests due to their excellent performance in optoelectronic devices. Recent efforts on preparing uniform and large-grain polycrystalline perovskite films have led to enhanced carrier lifetime up to several microseconds. However, the mobility and trap densities of polycrystalline perovskite films are still significantly behind their single-crystal counterparts. Here, a facile topotactic-oriented attachment (TOA) process to grow highly oriented perovskite films, featuring strong uniaxial-crystallographic texture, micrometer-grain morphology, high crystallinity, low trap density (≈4 x 1014 cm-3), and unprecedented 9 GHz charge-carrier mobility (71 cm2 V-1 s-1), is demonstrated. TOA-perovskite-based n-i-p planar solar cells show minimal discrepancies between stabilized efficiency (19.0%) and reverse-scan efficiency (19.7%). In conclusion, the TOA process is also applicable for growing other state-of-the-art perovskite alloys, including triple-cation and mixed-halide perovskites.},
doi = {10.1002/adma.201606831},
journal = {Advanced Materials},
number = 23,
volume = 29,
place = {United States},
year = {2017},
month = {4}
}

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Cited by: 22 works
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